CN204229104U - A kind of ray machine focusing structure of projector - Google Patents
A kind of ray machine focusing structure of projector Download PDFInfo
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- CN204229104U CN204229104U CN201420589304.1U CN201420589304U CN204229104U CN 204229104 U CN204229104 U CN 204229104U CN 201420589304 U CN201420589304 U CN 201420589304U CN 204229104 U CN204229104 U CN 204229104U
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- ray machine
- focusing
- screw
- projector
- sliding shoe
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Abstract
A kind of ray machine focusing structure of projector, ray machine is arranged in projector casing, the side of ray machine is provided with a focusing structure, this focusing structure includes a focusing wheel fixed support, one focusing wheel is rotating to be mounted on this focusing wheel fixed support, focusing wheel middle part forms the through hole being embedded with nut, one screw is through through hole and the nut screw connection of taking turns in through hole of focusing, the sliding shoe that one can promote to carry out by screw front and back slippage is also movably equipped with in focusing wheel fixed support, simultaneously, the side of ray machine stretches out a ray machine driving lever, the outer end holding of this ray machine driving lever is on the side of sliding shoe.The front of sliding shoe is provided with a spring, and the rear of screw is provided with a spring.The utility model structure is simple, easy to operate and have preferably focus effect.
Description
Technical field
The utility model relates to a kind of focusing focus set, particularly relates to a kind of ray machine focusing structure of projector.
Background technology
Projector is as different occasions such as a kind of office equipment applied teaching, scientific research, meeting, reports widely.In the focusing mode of the projector commonly used, ray machine as projector core component adopts integrated design, small volume, focusing driver plate is only had to stretch out focusing mark at fuselage outer side, by stirring focusing driver plate transmission gear structural adjustment ray machine focal length, but more complicated by the focusing structure structure of multiple sets of teeth wheel cooperating, some do not have transmission gear only to have a ray machine exposed then cannot adjusting focal length yet.
In view of this, the design people does not attain perfect caused many disappearances and inconvenience in the design of above-mentioned projector architecture, and deeply conceives, and active research improvement has a fling at and development and Design goes out the utility model.
Utility model content
The purpose of this utility model is the ray machine focusing structure providing a kind of projector, and its structure is simple, easy to operate and have preferably focus effect.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of ray machine focusing structure of projector, ray machine is arranged in projector casing, the side of ray machine is provided with a focusing structure, this focusing structure includes a focusing wheel fixed support, one focusing wheel is rotating to be mounted on this focusing wheel fixed support, focusing wheel middle part forms the through hole being embedded with nut, one screw is through through hole and the nut screw connection of taking turns in through hole of focusing, the sliding shoe that one can promote to carry out by screw front and back slippage is also movably equipped with in focusing wheel fixed support, simultaneously, the side of ray machine stretches out a ray machine driving lever, the outer end holding of this ray machine driving lever is on the side of sliding shoe.
Further, the front of sliding shoe is provided with a spring.
Further, the rear of screw is provided with a spring.
Further, be also connected with a stop pin at screw rear, the top of stop pin is provided with the stopper slot of a bar shaped, and vertically this stopper slot is provided with the spacing position-limitting pin of a pair stopper slot fore-aft travel in arranging.
Further, between two support columns that focusing wheel is provided with on focusing wheel fixed support, be provided with a through hole in the middle part of support column, screw is through through hole and focusing wheel.
Further, sliding shoe, by the promotion slide anteroposterior of screw, is provided with a sliding tray in support column front, is provided with one and can be engaged in lug movable in sliding tray below sliding shoe.
Further, screw promotes sliding shoe and then promotes ray machine to move back and forth, and the movable distance of ray machine is between 1.4mm.
After adopting said structure, when the utility model uses, directly rotate focusing wheel, focusing can be realized, and its structure is simple, easy to operate, also not easily occurring the situation that adjustment is excessive when adjusting, the precision of short distance focusing can be enhanced.
Accompanying drawing explanation
Fig. 1 is the utility model STRUCTURE DECOMPOSITION schematic diagram;
Fig. 2 is combination schematic diagram of the present utility model.
Embodiment
In order to explain the technical solution of the utility model further, below by specific embodiment, the utility model is elaborated.
In order to explain the technical solution of the utility model further, below by specific embodiment, the utility model is elaborated.
As shown in Figure 1, the utility model is a kind of ray machine focusing structure of projector, and ray machine 2 is arranged in projector casing 1, and casing 1 is provided with projection mouth 11 and a focusing mouth 12.
Shown in composition graphs 1, Fig. 2, a focusing structure 3 is provided with at the side of ray machine, this focusing structure 3 includes a focusing wheel fixed support 31, one focusing wheel 32 mounts on this focusing wheel fixed support 31, and lucky outer being exposed at of focusing wheel 32 is focused in mouth 12, thus can directly rotate focusing wheel 32 on casing.Form through hole 321 in the middle part of focusing wheel 32, and in through hole, be embedded with copper nut (not shown).Between two support columns that focusing wheel 32 is provided with on focusing wheel fixed support 31, a through hole 311 is provided with in the middle part of support column 310, one screw 33 is through through hole 311 and focusing wheel 32, and screw 33 and the nut screw connection of taking turns in through hole 321 of focusing, when rotating focusing wheel 32, then screw 33 opposing nut carries out activity, moves forward and backward in the axial direction.Take turns in fixed support 31 Jiao and be also movably equipped with a sliding shoe 34, this sliding shoe 34 carries out slide anteroposterior by the promotion of screw 33, a sliding tray 312 is provided with in support column 310 front, be provided with one below sliding shoe 34 and be engaged in the lug 341 that can move forward and backward in sliding tray 312, thus sliding shoe can carry out the to-and-fro movement advancing or retreat under the impetus of screw 33.Simultaneously, the side of ray machine stretches out a ray machine driving lever 21, the outer end holding of this ray machine driving lever 21 is on the side of sliding shoe 34, thus the movement of sliding shoe 34 has driven ray machine driving lever 21, and then this ray machine can be driven to move reciprocatingly, thus by rotating focusing wheel 32, screw 33 drives sliding shoe 34, namely the distance between adjustable ray machine and camera lens, reaches the object of focusing.
For making sliding shoe 34 can be more smooth when to-and-fro movement, operating effect be better, is provided with a spring 35 in the front of sliding shoe 34, and spring 35 rear end can link in the front of sliding shoe 34, and the rear of screw 33 is also provided with a spring 36 to promote screw 33 simultaneously.Thus, when screw 33 moving forward when rotating focusing wheel 32, promoting sliding shoe 34 and moving forward, Compress Spring 35, be positioned at the spring 36 then extending forwards reset at screw rear, thus drive sliding shoe 34 to move forward.When reverse rotation focusing wheel 32, screw 33 moves backward, the spring 36 at compression screw rear, and the spring 35 in slide block front resets, and also promotes sliding shoe 34 and moves backward, thus drive ray machine backward, the distance change between ray machine and camera lens.
Further, can connect at screw 33 rear and a stop pin 37 is set, thus limit the active strokes of screw 33 in conjunction with spring 36.Above stop pin 37, be provided with the stopper slot 370 of a bar shaped, vertically the stopper slot 370 of this stop pin is provided with in a position-limitting pin 371(Fig. 1 not shown).Stop pin 37 is spacing by keeping out of position-limitting pin 371, make position-limitting pin 371 pairs of stopper slot 370 fore-aft travel spacing, only can movable in stopper slot 370 scope, because spring 36 links at the rear of stop pin 37, thus restraining spring 36 activity can not exceed certain scope, also ensure that the active strokes of the front and back of screw 33 is unlikely to too large, screw 33 promotes sliding shoe 34 and moves forward or backward, and then promotion ray machine moves back and forth, ensure that the movable distance of ray machine is between 1.4mm, can move 0.7mm forward and backward respectively.Spring is added before and after screw 33, a stop pin 37 is also provided with above screw 33, thus focusing wheel 32 can be made not easily to occur when adjusting adjusting excessive situation with screw 33, in sliding shoe 34 active procedure, to-and-fro movement is more steady, greatly strengthen the precision of short distance focusing, focus effect is better.
When the utility model uses, rotate focusing wheel 32, screw 33 coordinates the nut transmission in focusing wheel 32, and screw 33 moves forward and backward according to relatively focus wheel 32 of sense of rotation, thus promote sliding shoe 34 carry out before and after to-and-fro movement, realize focusing.Further combined with the spring be arranged at before and after screw 33, and the stop pin 37 at rear, thus focusing wheel 32 can be made not easily to occur when adjusting adjusting excessive situation with screw 33, in sliding shoe 34 active procedure, to-and-fro movement is more steady, the precision of short distance focusing can be enhanced, and structure is simple, easy to operate.
The above, be only the utility model preferred embodiment, therefore can not limit with this scope that the utility model implements, the equivalence namely done according to the utility model claim and description change with modify, all should still belong in scope that the utility model patent contains.
Claims (7)
1. the ray machine focusing structure of a projector, ray machine is arranged in projector casing, it is characterized in that: the side of ray machine is provided with a focusing structure, this focusing structure includes a focusing wheel fixed support, one focusing wheel is rotating to be mounted on this focusing wheel fixed support, focusing wheel middle part forms the through hole being embedded with nut, one screw is through through hole and the nut screw connection of taking turns in through hole of focusing, the sliding shoe that one can promote to carry out by screw front and back slippage is also movably equipped with in focusing wheel fixed support, simultaneously, the side of ray machine stretches out a ray machine driving lever, the outer end holding of this ray machine driving lever is on the side of sliding shoe.
2. the ray machine focusing structure of a kind of projector as claimed in claim 1, is characterized in that: the front of sliding shoe is provided with a spring.
3. the ray machine focusing structure of a kind of projector as claimed in claim 1, is characterized in that: the rear of screw is provided with a spring.
4. the ray machine focusing structure of a kind of projector as claimed in claim 1, it is characterized in that: be also connected with a stop pin at screw rear, the top of stop pin is provided with the stopper slot of a bar shaped, and vertically this stopper slot is provided with the spacing position-limitting pin of a pair stopper slot fore-aft travel in arranging.
5. the ray machine focusing structure of a kind of projector as claimed in claim 1, is characterized in that: between two support columns that focusing wheel is provided with on focusing wheel fixed support, be provided with a through hole in the middle part of support column, screw is through through hole and focusing wheel.
6. the ray machine focusing structure of a kind of projector as described in claim 1 or 5, it is characterized in that: sliding shoe is by the promotion slide anteroposterior of screw, be provided with a sliding tray in support column front, be provided with one below sliding shoe and can be engaged in lug movable in sliding tray.
7. the ray machine focusing structure of a kind of projector as claimed in claim 1, is characterized in that: screw promotes sliding shoe and then promote ray machine to move back and forth, and the movable distance of ray machine is between 1.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589304.1U CN204229104U (en) | 2014-10-13 | 2014-10-13 | A kind of ray machine focusing structure of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589304.1U CN204229104U (en) | 2014-10-13 | 2014-10-13 | A kind of ray machine focusing structure of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229104U true CN204229104U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420589304.1U Active CN204229104U (en) | 2014-10-13 | 2014-10-13 | A kind of ray machine focusing structure of projector |
Country Status (1)
| Country | Link |
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| CN (1) | CN204229104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467542A (en) * | 2015-12-02 | 2016-04-06 | 中国科学院长春光学精密机械与物理研究所 | Side focusing device for dual-enclosed plane cam |
| CN106597781A (en) * | 2015-10-15 | 2017-04-26 | 南靖万利达科技有限公司 | Projector focusing mechanism |
-
2014
- 2014-10-13 CN CN201420589304.1U patent/CN204229104U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597781A (en) * | 2015-10-15 | 2017-04-26 | 南靖万利达科技有限公司 | Projector focusing mechanism |
| CN105467542A (en) * | 2015-12-02 | 2016-04-06 | 中国科学院长春光学精密机械与物理研究所 | Side focusing device for dual-enclosed plane cam |
| CN105467542B (en) * | 2015-12-02 | 2017-09-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of lateral focus control of dual sealing plane cam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180907 Address after: 363000 a factory building of Jingcheng Malata Industrial Park, Nanjing County, Zhangzhou, Fujian. Patentee after: Zhangzhou Malata Technology Co., Ltd. Address before: 363000 Malata Nanjing Industrial Park, Zhangzhou, Fujian Patentee before: Nanjing Malata Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |